Setup for realization, maintenance and dissemination of the unit of irradiance of low levels in the wavelength range from 0,2 to 0,4 μm

 Issues of ensuring the uniformity of measurements of radiometric quantities in the ultraviolet range are considered, specifi cally the topical problem of ensuring the uniformity of measurements of low levels of irradiance (below 10−7 W/m2) in the spectral range of 0.2–0.4 μm being in greatest demand. As a result of the improvement of the State primary standard of radiant fl ux, irradiance, spectral irradiance and radiant exposure units in the wavelength range of 0.0004–0.4 μm GET 162-2012 in order to expand the range in which the standard realizes the unit of irradiance towards low levels, a setup for realization, maintenance and dissemination of the unit of irradiance of 10−8–10−6 W/m2 in the wavelength range from 0.2 to 0.4 μm have been created. The setup has been incorporated into the State primary standard of radiant fl ux, irradiance, spectral irradiance and radiant exposure units in the wavelength range of 0.0004–0.4 μm GET 162-2022. Presented are the structure, the principle of operation and the results of metrological performance analysis of the setup. Investigations carried on within the period from 2020 to 2021 confi rmed the stability of metrological performance of the setup. The setup ensures the uniformity of measurements of low levels of irradiance in the ultraviolet range. The results obtained are in demand in various fi elds of technology, medicine, biology, where highly sensitive photodetectors and low-power sources of ultraviolet radiation are widely used. 

1. Boltar K. O., Burlakov I. D., Ponomarenko V. P., Filachev A. M., Salo V. V. Journal of Communications Technology and Electronics, 2016, vol. 61, pp. 1175–1185. https://doi.org/10.1134/S1064226916100041

2. Vasil’ev A. Elektrotekhnicheskii rynok, 2020, no. 2 (92), pp. 54–57. (In Russ.)

3. Minaeva O. A. Measurement Techniques, 2005, vol. 48, nо. 5, pp. 456–460. https://doi.org/10.1007/s11018-005-0164-3

4. Anevskii S. I., Vernyi A. E., Minaeva O. A., Morozov O. Yu. Measurement Techniques, 2005, vol. 48, nо. 11, pp. 1064–1069. https://doi.org/10.1007/s11018-006-0021-z

5. Anevskii S. I., Zolotarevskii Yu. M., Krutikov V. N., Minaeva O. A., Minaev R. V., Senin D. S. Measurement Techniques, 2015, vol. 58, nо. 3, pp. 286–291. https://doi.org/10.1007/s11018-015-0701-7

6. Anevskii S. I., Zolotarevskii Yu. M., Ivanov V. S., Krutikov V. N., Minaeva O. A., Minaev R. V. Measurement Techniques, 2016, vol. 58, nо. 11, pp. 1216–1222. https://doi.org/10.1007/s11018-016-0873-9

7. Ainbund M. R., Alekseev A. N., Alymov O. V., Jmerik V. N., Lapushkina L. V., Mizerov A. M., Ivanov S. V., Pashuk A. V., Petrov S. I. Technical Physics Letters, 2012, vol. 38, no. 5, pp. 439– 442. https://doi.org/10.1134/S1063785012050033

8. Gruzevich Y. K., Gordienko Y. N., Balyasnyi L. M., Chistov O. V., Alkov P. S., Shirokov D. A., Zhmerik V. N., Nechayev D. V., Ivanov S. V. Development of the solar-blind range photocathodes based on aluminum gallium nitride heterostructure fabricated by molecular beam epitaxial, Prikladnaya Fizika, 2015, nо. 4, pp. 82–87. (In Russ.)

9. Vikulov A. G., Gamzinov S. V., Goldberg I. I., Dolgih А. V. Proceedings of the XXV International Scientifi c and Technical Conference on Photoelectronics and Night Vision Devices, Moscow, May 24–26, 2018, Moscow, Ofset Moskva, 2018, vol. 1, pp. 140– 143. (In Russ.)

10. Avramenko E. V., Khabarova A. V., Sherstobitova A. S., Yas’kov A. D., Measurement Techniques, 2015, vol. 58, nо. 3, pp. 300–302. https://doi.org/10.1007/s11018-015-0703-5